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本文提出Ｐｒ－Ｆｅ－Ｂ－Ｃｕ热压历程判据的计算式：ｆ（Ｔ，ε）＝Ｔ２２１１５３９．９ｌｇε＋１８９５７４８８。判据认为：在变形温度≥１１７３Ｋ时，ｆ（Ｔ，ε）＞１，则热压磁体的其它峰强比较小，Ｉ（００６）／Ｉ（１０５）≥０．６０；Ｉ（００６）／Ｉ（１０５）与变形量ε之间存在如下关系式：Ｉ（００６）／Ｉ（１０５）＝０．９８３ε＋０．４６５；分析了｛１０５｝成为主滑移系的原因。在Ｔ＜１１７３Ｋ，ｆ（Ｔ，ε）＞１时，首次得到热压Ｐｒ－Ｆｅ－Ｂ－Ｃｕ的〔００６〕织构，并讨论了〔００６〕织构的形成原因。当ｆ（Ｔ，ε）≤１，热压磁体均破断开裂，形成不完善的〔１０５〕织构。在热变形中，Ｐｒ２Ｆｅ１４Ｂ均存在严重的点阵畸变、原子错位，热处理后可恢复正常。
In this paper, the calculation formula of hot pressing process of Pr-Fe-B-Cu is given as follows: f (T, ε) = T2211539.9lgε + 18957488. According to the criterion, f (T, ε)> 1 when the deformation temperature is ≥1173K, the other peak intensities of the hot-pressed magnets are relatively small, I (006) / I The relationship between I (105) and deformation ε is as follows: I (006) / I (105) = 0.983ε + 0.465; and the reason why {105} becomes the main slip system is analyzed. At T <1173K, f (T, ε)> 1, the hot-pressed Pr-Fe-B-Cu structure was obtained for the first time and the formation of [006] texture was discussed. When f (T, ε) ≤ 1, the hot-pressed magnets are broken and cracked to form an imperfect [105] texture. In the thermal deformation, Pr2Fe14B there are serious lattice distortion, atomic dislocation, heat treatment can return to normal.